Ments



(No Model.)

B. ROBINSON.

STOVE PIPE.

Patented Feb. 21, 1882.

pie to) Z %M% UNITED STATES PATENT OFFICE.

EDGAR ROBINSON, OF CINCINNATI, OHIO, ASSIGNOR, BY MESNE ASSIGN- MENTS, OF ONE-HALF TO GUYWEBBER, OF SAME PLACE.-

STOVE-PIPE.

SPECIFICATION forming part of Letters Patent No. 254,049, dated February 21, 1882.

- 7 Application filed January 10, 1882. (No model.)

To all whom it may concern Be it known that I, EDGAR ROBINSON, a citizen of the United States, residing at the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Stove-Pipes, of which the following is a specification.

I My invention relates to a method of improving the draft of stoves by burning the soot out of the pipes; and it consists broadlyin the introduction into the pipes through suitable conduits of any inflammable material which the accumulated soot will readily absorb, and by which the mass becomes inflammable.

The specific means which I have devised for the accomplishment of the important result consists, first, in attaching a metal plateto the inside of the pipe immediately in front of a priming-hole, and in such a manner as to leave a space between the plate and pipe, and with free communication between it and the pipefiue, so that oil or other inflammable material may be introduced through the priming-hole, and be so spread by the plate as to cause it to be absorbed by the accumulated soot, which will readily take fire and burn; second, in furnishing a covered conduit on the outside of the pipe, which opens into the space between .the side of the pipe and the interior plate to form a priming-hole for readily supplying the oil or other inflammable material, all of which will be fullyset forth in the following description of the accompanying drawings.

Figure l is an elevation ofa stove-pzpe elbow broken open to show the inside plate. Fig. i

is a section of same on line as m, Fig. 1.

e A represents an elbow-pipe; B B, conduits opening into the same. 'lhese I have shown with screw-caps; but it is obvious that sliding or hinged covers maybe substituted. 0 Gare the inside plates, riveted to the sides of pipe A. One of these tops, with the inside plate, is placed above the elbow in a horizontal position, the other in a vertical position and below the elbow; but I do not wish to limit myv B, pour in a small quantity of oil or other inflammable material, and replace the tops. By the time the fire is under headway the oil will have diffused itself through the soot in the pipes, so that it will burn readily.

I have described the preferred manner of using my invention; but its benefits may be enjoyed in an inferior degree without the use of the distributing-plate by introducing the inflammable material through the priming-hole with a diffusing-injector or other device.

My invention may be advantageously applied to heating-drums in like manner as to pipes.

I claim-' 1. A stove-pipe or elbow provided with a covered priming-conduit for the introduction of oil or other inflammable material, as and for the purpose specified.

2. A priming device formed on a stove-pipe, consisting of the covered priming-hole and a spreading-plate, 0, arranged upon the inside of the pipe, under the priming-hole, substantially as herein set forth.

3. A priming device in a'stove-pipe, consisting of a priming-hole, a surrounding screwcap, aud a spreading-plate attached to the interior ofthe pipe, under said priming-hole, said plate being attached so as to spread the oil over the interior sooty surface of the pipe, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. V

EDGAR ROBINSON. Witnesses:

EDWARD BOYD, J. H. Guns. SMITH. 

